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Spin-polarized transport in magnetic tunnel junctions

发布日期:2016-12-12

报告人:苗国兴 教授 University of Waterloo

邀请人:颜世申、康仕寿 教授

报告时间:20161214 下午 4:00

报告地点:知新楼C1111

 

摘要:

Spin polarized tunneling has been widely explored in modern spintronic applications, such as for mass data storage and spin logic operations. One can achieve highly efficient spin transport through spin filter tunneling, or coherent tunneling. Instead of a simple energy barrier, spin filter barriers can actively select the desired spin species, while symmetry filter barriers only allow the preferred Bloch state symmetry. Here we study exotic materials as the tunnel barriers, such as chalcogenides and fluorides, and combine them to explore potential ways of improving spin transport efficiency.

 

报告人介绍:

Prof. Miao has been an assistant professor at the Institute for Quantum Computing (IQC) and the Department of Electrical and Computer Engineering at the University of Waterloo since 2011. He received his BSc from Shandong University in 1999, and PhD from Brown University in 2006. He then proceeded as a Postdoctoral Associate and later on promoted to Research Scientist at the Francis Bitter Magnet Laboratory at MIT. Prof. Miao’s research focuses on a particular aspect of the electrons – their spin degrees of freedom. His team construct spin-based nanoelectronic devices with improved performances and scalability by taking advantage of the interplay between a few fundamental spin systems: magnetism, superconductivity, and the topological spin state. The program has a strong emphasis on the development of novel materials, in search for an ideal platform that will take us to an era beyond silicon.